Sectional harrow



Oct. 30, 1928.

L. P. WOLF SECTIONAL HARROW 2 Sheets-Sheet 1 Filed June '28, 1926 YE Leonard R W02,

Oct. 30, 1928. i 1,689,759

L. P. WOLF SECTIONAL HARROW Filed June 28, 1926 2 Sheets-Sheet 9 E w n I g i 3 U '42 71' E I 1 1; Q I I "I 66 4 a1 Leonard P. Wolf Patented Oct. 30, 192 8.

A UNITED STA ES LEONABD WOLF, OF BURLINGTON, 'WISCONSIN.

I SECTIONAL nannow'."

Application filed June as, 1926. semi mj 118,966.

This invention relates to harrows and more particularly to sectional barrows, although certain features thereof may be used with equal advantage for other purposes. It contemplates more especially the provision of a harrow'or implement of varylng spread which is readily adjustable so as to permit its use in restricted places.

' In implements of the character mentioned,-

it is desirable to provide standard unitsof suitable form-which bear a relation to eachv other to facilitate their assembly or dismantling so as to produce With ease, a structure of'any desirable spread. Moreover, it is to be noted that shipment of such an implement isgreatly facilitated owing to the fact that it can be readily dismantled and the units conveniently handled with ease and rapidity Further, devices of known construction, are usually of such spread that they necessarily must be drawn endwise through restricted areas. This necessitates a changed application of the motive power, which delays the progress thereof,consumes time, and seriously inconveniences the attendant.

One ob'ect of the present invention is to improve t e operation and simplify the construction of devices of the character mentioned.

Another object is to providea sectional barrow or similar implement having a variable spread.

Still another object is to provide improved means to facilitate the assembly of the constituent sections of an implement.

A further object is to provide an improved implement whlch may be readily ad usted for effective use in areas of varymg magma tudes.

A still further 0 got is to' provide a sectional implement w ich maybe] assembled and dismantled with ease in order to permit convenient handlin thereof.

, Other objects an advantages will appear 5 from the following description of an illustrated embodiment of the present invention;

In the drawings:

Figure 1 is a plan view of an implement embodying features of the present invention.

'Figure 2 is a view of an'elevatlon of the so I implement shown'in Figure 1.

- tions, a segment 19 having a notched arcuate Figure 3 is a sectional view taken substantially along line IIIIof Figure 1, an end section thereof being shown in an elevated position.

.;F1gure4 .isa sectional view taken substantially along line IV-IV of Figure 1.

Flgure 51s a sectional View taken substantlally along line VV of Figure 1.

F 1gure-6 is a fragmentar sectional View taken substantially along ine VIVI of Figure 'The implement selected for illustration consistsof a plurality of units 10, in this instance four, 'constitutin a sectional frame. Each section is prefera ly composed of an angular metallio bar-ll which is bent intermediate the ends thereof to define a substantially rectangular frame closed at the ends thereof many appropriate manner. Rotatably mounted within the sections 10 are a plurality of parallel spaced supporting bars 12-01 WOOCl or any other suitable material. The bars 12 are mounted on suitable hori- I zontal pins13 projecting through the sides of the frame 10 between which the bars 12 are suspended. Harrow means, in this instance,

the pointed pins .14 constituting teeth, are securely fixed 1n spaced relation, to the bars 12 and are staggered with respect to the pins in next succeeding bar so that the area/ covered by the frames is effectively harrowed.

'The pins 14 are preferably driven intofthe construction. A hand lever 18 is rigidly fixedto one of the bars preferably the last supporting'bar 12 of each section, and the l beam 16'is pivotally secured to the lever 18 intermediate the ends thereof so that angular movement may be imparted to each ofthe supporting bars by the lever 18. In order to retain the-bars 12 in different angular posisurface 20, is secured to a bracket 21 which is r fixed in any appropriate manner to the frame as at22. iA tooth 23 is pivotallysecured to the lever 18 as at 24 for cooperation with the notched segment, whereby the lever 18 ma be maintained in any angular position wit inthe range of the notched surface 20. The tooth 23 is selectively controlled for sliding on ment with the notches by virtue lo'of a secondary lever 25 which confronts the --extremity of the hand lever 18 and is mov- .able relative thereto by virtue of its pivoted mounting on the pin 26. The lever 25' is op erativel connected to the tooth 23 by means of a ro 27 provided with curvedends pivotally associated in suitable apertures pro-. I vided in the tooth 23 and the lever 25. A spring or any other suitable means may be employed to normally urge'the tooth 23 in to engagement with the notched periphery 20 of these ent19.-

T v Wi the arrangement of parts thus fardescribed "it will be apparent thatthe bars 12 of section may be turned and held 'in different adjusted positions within. the

limits defined by the segment 19. v I To detachably secure the sections.10 tcgether so. that an implement of any desired spread ma be provided, means are employed on the ad acent edge: ofeach section to'fa-. cilitate the assemb g and dismantling of the sections. The coopkerating means, in

i instance, comprises a 00k 28having-anupe tangrg9 and a curved extremity 30 )3 spaeedthere m.- The tang 29 is secured to the inner side of the angle iron constituting the frame 10, by means of any suitable fasteners such as the bolts 31. The adjacent. angle bar of the next succeeding section is provided with suitable orizontal portion thereo the curved end '30 ofthe member 28 so that the section 10 to which the hook 28 is secured, is sufliciently so that the adjacent sections can be conveniently dismantled. A beam 33 comprisin in this instance a midsection 34 equal in length to I the intermediate pairof frames 10, has pivfotall secured to the extremities thereof the ,end I 35 substantially; 'ual in length to the end sections. '-A pairb i spaced links 37 and 38 are secured to the frame ofeach section at spaced ints for engagement with V .the studs 39 on t e beam- 33 sothat the extremities thereof which are shaped to'define" eyes, cooperates therewith to maintain the u 33 spaced from the sections 10, parallel to the bars 12, as clearly shown in Figure 1. The end portions 35 are pivoted to the mida section 34 of 'the beam 33 by means of the I bolts 40 and 41 which extend throu h'the contactingendplates 42 and 43 sec .to the" members 34 and 35 respectivelyr Secured f the extremities of the member 34 on the top surfacethereofisanangular plate44and apertures- 32 in the to freely receive when certain of saidthe bottom thereof a straight plate'45', which are held in position In means of the bolts 46 whereby the end sections can be maintained in either horizontal or elevated position.

The le ers 18 are so positioned on each section so that the end sections may be maintained in an elevated position b the interlocking of the levers 18, as clear y indicated in Figure 3, owing to the fact that'the shank of one of the levers may be received between the extremities of the adjacent hand and thumb levers 18 and 25, respectively.

In order to conveniently and 'efiectively pull the-implement over the surface, a brace consisting of tension rods 47 joined at the extremities thereof by a ring 48, is secured to the beam 33 by means of the links 49 and 50 associated with the free extremities of the rods and secured to the adjacent ends of the segments comprisin the beam 33 thus m0: tive power of any 0 aracter may be secured to the ring 48, by a clevis or other suitable means.

It will be apparent that an im ement has been rovided which is simple, urable and of ad ustable spread to facilitate its use in restricted laces; It is to be noted that any number 0 sections may be employed and that suitable eye bolts51 may be provided in the beam 33 at spaced points to facilitate the use of any of the sections independent of the others to meet the needs of. any locality orarea.

I am aware that numerous details of con-- struction may be varied through a wide without departing from the principles of this invention, and I therefore do not u' so limiting the patent granted OthGl'WlSB' t necessitated by the prior art. 7

I claim as my invention:

pivotally secured ther teeth carrying crossbars journaled if said frames, means including a lever individual to each framefo'r rotating said crossbars a foldable beam secured to said frames, and angular plates jacent the joints in said beam to limit the pivotal movement of the folda'bleportions thereof with the corresponding 'terlockable to maintain certain of said frames connected to said frames, said beam including a-fixed portion, and means onsaid beam for frames, sai means including strai ht irons,

.10 1. In a sectional harrow, spaced frames lie framesand" act as a rest therefor, said levers in- 11's in elevated osition. v

4 2. In a arrow, teeth carrying frames pivotally connected, a foldablebeam thepivotal movementof said extending outwardly from said 'fixe portion a for abutment b pivotalportions of said and angle irons on said. fixed rtion for abutment by pivotal rtions 0 .said beam frames are in non-uselan beam when said names are in useful position,

I .a. herrovr, e foldebiejmemberheving thereon eecurdto thereof aid a' fixed end pivotal portions, teeth carrymg hooks being 0;: 1e m the apertumeof',

means connected to thefixed portion of said said members m the underside thereon member,\teeth means connected to In'tes'timony whereof lheve hereunto sub- 5 pivotal portions of sand member, apertlimd scribed my name.

members on 'eertain ,of said means, and inverte dhooks havin'ge-reamfardly bentpron g LEONARD P. W LF. 

